| Identification Data |
| Common Name | Dubhe |
| Constellation | Ursa Major |
| Star Name | 50alp UMa |
| Skymap Number | 11030125 |
| Henry Draper (HD) Number | 95689 |
| Harvard Revised (HR) Number | 4301 |
| SAO Number | 15384 |
| Durchmusterung (DM) Number | BD+62 1161 |
Washington Double Stars (WDS) Number
| 11037+6145
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 17705 |
| Right Ascension (RA) J2000 | 11h 3m 43.668s |
| Declination (Dec) J2000 | +61° 45' 3.720" |
| Position Uncertainty | 0.0055s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.01922 |
| Proper Motion in Dec (J2000) | -0.035267 |
| Radial Velocity | -008.9km s-1 |
| Trigonometric Parallax | +0.02638s |
| Trigonometric Parallax Uncertainty | 0.00053s |
| GCI Unit Vector in X (J2000) | -0.459108 |
| GCI Unit Vector in Y (J2000) | 0.115048 |
| GCI Unit Vector in Z (J2000) | 0.880899 |
| Galactic Longitude | 142.84° |
Galactic Latitude
| 51.01°
|
| Observational Data |
| Observed Visual Magnitude (V) | 1.82 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 2.88 |
| Observed B-V Colour | +1.064 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 2.0 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K0-IIIa |
| One-Dimensional Spectral Class | K0 |
| Position Angle | |
| Year of Observation | 1991. AD |
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